Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Jarosite from
Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy


08394370017363697413227.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
07154110017272002829842.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
03779790017272002868922.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
03999940017272002895328.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
08394370017363697413227.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
02354090017367290101586.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
05955010017367290106600.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
01457010017367290113866.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
06929650017367290114998.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
07154110017272002829842.jpg
Jarosite

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
03779790017272002868922.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
03999940017272002895328.jpg
Jarosite, etc.

Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
Locality type:Mine
Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz2
Gypsum1
Tripuhyite1
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:84189
Long-form Identifier:1:3:84189:6
GUID (UUID V4):0
Nearest other occurrences of Jarosite
17.3km (10.8 miles) ⓘPodere Montevecchio (Podere Montevecchio Mine; Miniera della Sambuca), Gerfalco, Montieri, Grosseto Province, Tuscany, Italy
18.4km (11.4 miles) ⓘBoccheggiano mines, Montieri, Grosseto Province, Tuscany, Italy
20.5km (12.7 miles) ⓘLa Selva Mine, Casale di Pari, Civitella Paganico, Grosseto Province, Tuscany, Italy
25.4km (15.8 miles) ⓘCugnano, Monterotondo Marittimo, Grosseto Province, Tuscany, Italy
28.0km (17.4 miles) ⓘPoggio al Montone, Montoccoli-Castellaccia area (Fosso Zanca-Filone di Montoccoli area; Zanca Valley mines), Massa Marittima, Grosseto Province, Tuscany, Italy
30.9km (19.2 miles) ⓘCetine di Camporbiano Mine (Le Cetine; Cetine di Volterra; Cetine di Gambassi), Podere Giuseppe, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy
31.7km (19.7 miles) ⓘMicciano, Pomarance, Pisa Province, Tuscany, Italy
32.8km (20.4 miles) ⓘSerrabottini, Massa Marittima, Grosseto Province, Tuscany, Italy
33.6km (20.9 miles) ⓘAccesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy
35.9km (22.3 miles) ⓘMarsiliana slag locality, Valpiana - Castello della Marsiliana area slag sites, Massa Marittima, Grosseto Province, Tuscany, Italy
References
Sabelli, Cesare, Brizzi, Giancarlo (1984) Alteration Minerals of the Cetine Mine, Tuscany, Italy. The Mineralogical Record, 15 (1) 27-36
Menchetti, S., Batoni, M., Batacchi, C., Borselli, G., Brogi, A., Ceccantini, L., Fassina, B., Marchesini, M., Rossellini, A. & Ruggieri, G. (2015): Le Cetine di Cotorniano. Miniera e minerali. Associazione Micro-Mineralogica Italiana, Cremona, 354 p.
 
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